Setts



Patentednov. l5, |898 n. CRUMPToN & H. wYMAN. SHUTTLE CHANGING MEGHANISM FOR LUOMS.

'Anplcstion 1ed Ja.n. 24, 1898.) (No Model.) 4 Sheets'-Sheet l.

No. 6l'4,3 69. PatentedNov. I5, |898. H. CRMPTN & H.'WYMAN. SHUTTLE CHANGING'MECHANISM FOR LOMS.

(Application le i Jan. 24, 1898.) (No Model.) 4 Sheets-$heet 2.

No. 6|4,369'. i PatentedNnv. l5, |898. n. CROMPTON & H. vwYMAN.

SHUTTLE CHANGING MEcHANlsM Fon Looms.

(Application filed Jan. 24, 1898.) (N0 Mudd.) 4 Sheets-Sheet 3.

No. 6|4,369. Patented Nov. l5, |898.

n. cRoMPToN & H. wYMAN. A SHUTTLE CHANGING MECHANISM FR LUOMS.

Application filed Jan. 24, 1898.\

(No Model.)

4 Sheets-Sheet 4.

14 Zit-910, 5f

v UNITED STATES PATENT OFFICE.

RANDOLPH OROMPTON AND HORACE WYMAN, OF WORCESTER, MASSACHU- SETTS, ASSIGNORS TO THE OROMPTON de KNOWLES LOOM VORKS, OF

SAME PLACE.

SHUTTLE-CHANGING MECHANISIVI FOR LOOMS.

. SPECIFICATION forming part of Letters Patent No. 614,369, dated November 15, 1898.

Application filed January 24:, 1898. Serial No. 667,679. (No model.)

T all whom t may concern.:

Be it known that we, RANDOLPH CRoMP- TON and HORACE WYMAN, of Worcester, county of Worcester, State of Massachusetts,

have invented an Improvement in Shuttle- Ohanging Mechanism for Looms, of which the following description, in connection With the accompanying drawings, is a specification, like letters and figures on the drawings Io representing like parts.

This invention has for its object to improve that class of looms wherein a spare shuttle is placed automatically at the level of the race of the lay to be thrown through the shed after r 5 the filling has been exhausted or run off from the illing-carrier in the running shuttle-box to a predetermined amount. Herein the lay is provided with arunning shuttle-box, it containing the shuttle which is used to furnish zo filling for the cloth being woven, and coperating with this running shuttle-box is a spare shuttle-feeder, which at the proper time supplies a spare shuttle to the lay to take the place of the shuttle in the running shuttle- 2 5 box, said spare shuttle-feeder being normally held stationary in its inoperative position at the loom side near the breast-beam. When the filling on the iilling-carrier in the running shuttle-box indicates, from breakage or otherwise, that the shuttle in the running shuttleboX should be changed, then the shuttlefeeder, it constituting a second shuttle-box, at such time held in its inoperative stationary position is automatically placed vertically 3 5 in line with the running shuttle-box, the said shuttle-feeder or second shuttle-box on its arrival in said vertical line' occupying its operative position at the level of the race of the lay, the running shuttle-box having in 4o the meantime been put into its inoperative position to enable the shuttle contained in it to escape from the entirely open rear side of said shuttle-box into a suitable receptacle made for it and located at the loom side.

The invention herein contained is an mprovement on the loom shown and described in United States Patent No. 600,490, dated March 8, 1898.

Figure 1, in front elevation, represents a 5o sufficient portion of a loom embodyingour invention to enable the vsame to be understood. Fig. 2 is a left-hand end view of a portion of said loom with the parts represented in the position they will occupy when the loom is running regularly. Fig. 3 isa de- 55 tail showing the lay in its forward position, with the running shuttle-box substantially in its inoperative position and the shuttle-feeder as coming into its operative position.v Fig. 4 is a detail of the same parts at the succeed- 6o ing back stroke of the lay,the running shuttleboX being yet in its inoperative position, the shuttle which was carried by it having been discharged over the wall carried by the lay, and in this position the spare shuttle acted upon by the picker is thrown from the shuttlefeeder, it then being in its operative position. Fig. 5 shows tho said parts at the third fori ward stroke, as herein described, Fig. 6 at the end of the third backward stroke. Fig. 7o 7 is a detail of the rocker-iron especially devised for use in this loom. Fig. 8 isa sectional detail of said iron, together with the block or lower end of the rod carrying the running shuttle-box. Fig. 9 is an enlarged 75 detail of the lower end of the rod carrying the running shuttle-box, together with the lower end of the lever carrying the spare shuttlefeeder. Fig. l0 is a much enlarged top or plan view of the end of the raceway, it show- 8o ing the running shuttle-box in its operative position. Fig. ll is an enlarged detail showing in plan View the shuttle-feeder and part of the bar or lever carrying it. Fig. 12 is a sectional detail in the line Fig. lO. Fig. 13 is a top view of the casting carried by that end of the lay in which the running shuttleboX Works,but with said shuttle-box removed. Referring to the drawings, Arepresents the loom-frame; AX, the breast-beam A3, the 9o lay; B, the crank-shaft; B', the pitman connecting the crank-shaft with the lay; B2, the under or cam shaft; B4, atoothed wheel thereon, which engages the teeth of a toothed wheel B3, fast on the crank-shaft.

The cam-shaft may be rotated in any usual manner, and it carries a gear G, having two sets of teeth 24 and 25, (see Fig. 2,) separated one from the other, said shaft B2 rotating once to every two rotations of the crank-shaft. 10o

, v y Y v The loom-frame has mounted upon it near the said cam-shaft a stand BX, having suitable bearings for a shaft e8, having at its inner end a disk h', provided with a crank-pin e6, over which is fitted one end of a link e5, adj ustably connected with one end of a lever e3, having its fulcrum at e4 on the loom side, said lever having connected to its other end in an adjustable manner a link c2, which in turn fits over a stud b3, extended laterally from the lower end of the shuttle-box rod D6 or from a block 22, attached to the lower end of said rod by a screw 23.

The rod D supports, in manner to be described, a running shuttle-box h, hereinafter to be more fully referred to.

The shaft es has fast on it a mutilated gear f, it having removed from one side of it two teeth to leave a space or groove, and at a point diametrically opposite said space, as herein represented, said gear has a large tooth 4. The shaft e8 has fitted on its outer end to slide thereon a fork f3, having a leg provided with a tooth 3, said leg being free to be slid in said groove to put its tooth 3 in line with the remaining teeth of the gear f or out of line with relation to said teeth. The tooth 3 normally stands out of line with relation to said teeth and out of the line of movement of the teeth 24 and 25 so long as the running shuttle-box, to be described, remains in its operative position; but as soon as the said running shuttle-box is to be put into its inoperative position, due to failure of the weft in the shuttle carried by it, then said tooth 3, it standing close to the teeth 2l of the gear G, which is rotating continuously, is moved outwardly to put the said tooth 3 into position to be engaged by the said teeth 24E. This movement of the sliding fork f3 is effected by or through the backward motion of a filling-fork slide or carrier ce, it carrying a filling-fork c7 and being moved backwardly in usual manner on the failure of the filling by a hammer device d10, shown as on a sliding bar d, actuated by a cam d3 on shaft B2, said cam having a groove in it at one side to receive a pin 66 of the hammer device. The slide or carrier cs, when moved toward the front of the breast-beam, acts on and turns a lever cw, connected with a rock-shaft cl2, having an arm cl3, to which is attached a rod c, joined to an elbow-leverf, pivoted at 2O on the stand BX, one end of said lever f entering a slot in a second elbow-lever @12, mounted on a stud @14 of said stand and having at its lower end a roller or other stud 26, which enters an annular groove in the said sliding gear f3. The lever e3, herein designated as a shuttle-boX-moving lever, having been turned to raise the running shuttle-box, the teeth 24 of the gear G run out of mesh with one of the series of teeth of the mutilated gear f, and said gearf and the shaft es remain stationary until in the continued rotation of the gear G the teeth 25 thereof come in position to meet the tooth 4, fixed, as herein stated, to the said gear f, when the gear f and shaft es are again given a semirotation to move the lever e3 and also the running shuttle-box, and this lowering of the shuttlebox having been effected the lever e12is moved by or through the shaft cl2, controlled through the filling-fork mechanism to move the forked gear f3 inwardly toward the loom side and put the tooth 3 thereof out of range of movement of the approaching teeth 24: of gear G, and thereafter the lever ea will remain inactive so long as the iillin g is properly delivered from the shuttle in the running shuttle-boxA The devices so far described and specifically referred to, with the exception of the block f2?, are and may be all as provided for in said patent, so their action need not be herein further described.

Instead of the particular devices herein shown and described for operating the lever e3 we may use any other usual shuttle-boxlever-moviug devices, and, if desired, the forked lever]3 may have two legs, each having a tooth, as in United States Patent No. 600,489, dated March S, 1898, said teeth coming into line with the teeth of the mutilated gear one after the other, according to the direction of movement of the said sliding fork.

The upper end of the rod D6, hereinbefore referred, to is herein represented as provided with a permanent cross-bar b9, which is bent backwardly at 69X, (see Fig. 2,) away from the breast-beam at its end next the loom side. (See Fig. 2.) The opposite ends of this crossbar b have attached to them by suitable nuts rods bm and 1912, and the upper ends of said rods slide in suitable bearings bm and bmx in a casting D14, connected with the lay and projecting beyond the looln side at that end of the lay containing the running shuttle-box. The upper ends of these rods arelocated one in front and the other back of a slot Z118, in which plays back and forth the picker-stick C3. The upper ends of these rods have attached to them the running shuttle-box, it consisting, as herein shown, essentially, of a flat plate D, the shape of which is best represented in Fig. l0, saidl plate having an open slot d, in which may play the said picker-stick C3, and at its front side this plate has an up right wall CZ', the inner face of which is parallel, or substantially so, with relation to the faces of the dents of the reeds t2, said front wall having at its upper edge an overhanging lip 61X.

As shown herein, the wall CZ has pivoted upon it at d4 a binder d5, which is normally acted upon by a suitable spring d, that serves to keep the inner or bulging faces of the binder in the path of movement of the shuttle in the running shuttle-box. The free end of this binder may in practice be acted upon by any suitable binder-finger 28, carried by a binderoperating rock-shaft 29, mounted in bearings at the under side of the race of the lay, said rock-shaft in practice being provided with a spring acting in usual manner to normally IOO IIO

'ei-Lese .s

keep the binder-finger against the free end of the binder.

The rear side of the plate D is entirely unobstructed, and the under side of the shuttle in the running shuttle-box is supported directly on the plate D at both sides of the slot d therein.

The casting 614, applied to the lay, has, however,rising from it, as herein shown, a shuttlealining wall c, the front face of which stands substantially in the vertical plane occupied by the faces of the dents of the reed 152, said alining-wall serving not only to aline correctly the rear side of the shuttle c', operating in the running shuttle-box with relation to the dents of the reed, so that said shuttle may be thrown in a straight line across the lay, but it also serves that other most important purpose-viz., it constitutes the back for the running shuttle-box when the latter is in its operative position in line with the race of the lay; but when the said running shuttle-box is put into its inoperative position by lifting the rod D5, as stated, after the failure of the iilling in the shuttle of said boX, then said wall no longer constitutes the rear side of said box, and the running shuttle in the running shuttle-box then in its inoperative position is free to escape laterally from the said running shuttle-box over the wall c and into a receptacle c3, suitably placed for that purpose, said shuttle being thrown from said running shuttle-box on the second back stroke of the lay or that stroke following that forward stroke during which the running shuttle-box was put into its inoperative position.

The castingvb14 is attached at its end to the lay by bolts Z916 b, and said casting presents a bar 1915, the top of which is located below the level of the race of the lay, and behind this bar is the slot Z318, hereinbelore referred to, in which the picker-stick C3 is moved to and fro. The bar Z915 has connected to its front side by suitable bolts c4 an inclined finger c5, which projects forward from the lay, said finger constituting a bridge or guide to determine the line of motion of the shuttlc-feeder h when coming from its stationary inoperative position (shown in Fig. 2) at the loom side near the breast-beam into its operative position, as shown in Fig. 4.

The shuttle-feeder or second shuttle-box h consists, essentially, of a iiat plate having, as best shown in Fig. 11, a sloth', open at its end to enable the picker-stick C3 to enter said slot and throw the spare shuttle h2 from said shuttle-feeder across the lay, said shuttie-feeder being then in its operative position at the level of the race of the lay.

The plate 7L of the shuttle-feeder is mounted upon a lever or bar h3, pivoted on a stud h4, (see dottedlines, Fig. 2, and full lines, Figs. S and 9, held in the forked lower end of a block 22,) secured, as herein shown, by a suitable bolt 23 to the rod D6, carrying the running shuttle-box; but instead of this block being detachable from the lower end of said rod it might be formed integral therewith. The block 22 is shaped to enter, substantially fit, and be guided by grooves h5, made in the rocker-iron ho, which is attached by set-screw hlx to one end of the rocker-shaft 7L?, on which are mounted the swords A3 of the lay, the said block rising and falling in said grooves as the lever e3 is turned in one or the other direction to lift or depress the rod DG. The lever h3, carrying the shuttle -feeder, owing to its connection with the said block, rises andfalls in unison with the running shuttle-box. The short arm 713x of the lever h3 has connected to it a spring ho, the opposite end of the spring being fixed to the rod D, so that said spring normally acts to hold the shuttle-feeder in its inoperative position, as shown in Fig. 2, and in such position a slotted or bifurcated part hs on the lever carrying said shutt-le-feeder embraces a stationtoward the lay, the latter being supposed at that time to be advancing toward the breastbeani,and as said shuttle-boxes are being lifted the said bifurcated portion passes from the finger hf upon the end of the inclined guide or iinger c5, extended from the lay, and the latter finger thereafter continues to act alone as a guide for the lever h3 as the shuttlefeeder comes into its operative position in a line vertical with relation to the line in which the running shuttle-box moves on the lay, said linger c5 also acting as a locking device to insure the movement in unison back and forth with the lay of the said shuttlefeeder. These two lingers, when the lay is substantially forward, coincide, forming a sort of bridge, so that the lever h3 may pass readily from one to the other.

The spare shuttle-feeder has at its front side a spring-plate g, held at one end by a screw g', said plate acting as a binder against the outer side of the spare shuttle and compressing said shuttle, when the spare shuttlefeeder is in its operative position at the level of the race of the lay, against the said alining-surface c of the lay. The loom side has a suitable shelf or holder g2, upon which may be laid a second spare shuttle, andthe spare shuttle resting upon the shuttle-feeder may have its ends or tips located properly with relation to the space below the plate D of the running shuttle-box by means of positioning devices g3 and g4, the positioning device g3 being connected with said holder, while the one g4 is shown as connected with the inner side of the breast-beam.

The rocker-iron h6 has a substantially hori- IOO IIO

Zontal seat g5, from which rises a lug g, said face also having an opening Q7. The lug g6 enters a slot in the picker-shoe g8, and a downwardly-projecting lug g9 from said shoe enters the opening g in said seat. This shoe and the picker-stick are of usual const-ruction, and the picker-stick will be operated in usual manner; but prior to this our invention the rocker-iron has never to our knowledge been provided with any means whatever below its face, on which the rocker-shoe rests and turns, to guide the lower end of a shuttle-box rod D6 or a block attached to said rod in its vertical movement. The provision of making the grooves h5 in this rocker-iron, rather than projecting upwardly from the lay-rocker-shaft arms, to constitute a guideway to receive the shuttle-box rod greatly lessens the cost of the loom and simplifies the operation of the parts, and it also insures greater accuracy of movement.

)Ve will briefly describe the operation of the loom. Let it be supposed that the filling in the running shuttle-box is exhausted or broken and that said filling, it not being present in the shed at a forward motion of the lay, causes the filling-fork and its slide to be moved back across the breast-beam in usual manner to, through the rocker-shaft cl2, start the shuttle-box-lever-moving mechanism into operation, as described. The filling-fork is located between the dents of the reed of the lay and the plain shuttle-box at the opposite end of the lay, and as the lay goes back from that stroke in which the lling failed, which we will call the first stroke, the failed shuttle is thrown back into the running shuttlebox, yet in its operative position at the race of the lay; but by the time that the next or second forward motion of the lay commences the shuttle-box-shifting mechanism begins to work, and about as the lay arrives in its forward position, Fig. 3, the `lever e3 will have been moved far enough to start the lever h3 on its upward movement, which causes the roll R12, acting on the under side of the guide or finger hg, to start said lever and the shuttle-feeder toward the advancing lay, so that in said advancing movement the lever e3, yet continuing its movement, causes the lever 71.3 to pass from the guide or linger hf onto the guide or finger c5, and by the time that the lay colnpletes this forward movement the running shuttle-box will have been lifted substantially into its inoperative position and the shuttle-feeder will have come nearly into its operative position at the level of the race of the lay, and by the time that the second back stroke is completed (see Fig. 4) the running box will have been put into inoperative position and the shuttle-feeder fully into its operative position. On this second backward stroke of the lay the shuttle in the running sh little-box will be thrown from the open rear side of said running shuttle-box over the top of the wall c into the box c3, and as the lay reaches the proper position in its second back stroke (see Fig. 4) for the shuttle to be picked the picker-stick CS acts in the slot 7L' of the shuttle-feeder and throws the spare shuttle from the shuttle-feeder onto the race of the lay. During the next or third forward stroke of the lay (see Fig. 5) botlrshuttleeboxes are emptied, and at this time the shuttle-box le# ver e5 is again moved, this time, however, to lower the running shuttle-box and the shuttle-feeder and moving the bifurcated portion of the lever h3 from the finger c5 onto the iinger 719, (see Fig. 5,) leaving the shuttle-feeder in its inoperative position, so that by the time that the lay arrives at the end-of its third back stroke (see Fig. 6) the said running shuttle-box will receive the shuttle just thrown from the shuttle-feeder at the previous back stroke of the lay.

The bottom plate 71. of the shuttle-feeder has at its outer edge, next the operator and near its opposite ends, two uprights 30 and 3l. The spring g is connected at one end to the upright 30, the upright 3l acting as a stop against which the free end of the spring is normally pressed, the top of said spring at its end being overlapped by a short lip extended baekwardly from the upright 3l. (See Figs. 3 and 4.)

To the rear side of the lay (see Figs. 3 and 5) we have connected a stand 40, provided with an ear 4l, carrying a stud which enters the hollow hub 42 of a lever 43, (see Fig. 10,) a part of the face of which is normally kept in the path of movement of the picker-stick by a suitable spring 44, (see dotted lines, Fig. 10,) said lever acting as a picker-stick check. The position of said lever as regards the line of motion of the picker-stick is controlled by a stop 45.

Having described our invention, what we claim, and desire to secure by Letters Patent, 1s-

l. In a loom, a lay'; arunningshuttle-box, its rod, and means to moveit in the lay; combined with the lay rock-shaft, and the rockeriron having a seat for the picker-shoe and provided between the said seat and the loom side with a guide extended below said seat to receive and guide the end of the rod carry ing the said running shuttle-box, substantially as described.

2. In a loom, a lay, a ruiming shuttle-box, its rod, and means to move it in the lay, a spare shuttle-feeder carried by a lever joint- ,ed to said shuttle-box rod; combined with the lay rock-shaft, the rocker-iron connected thereto having a seat for the picker-shoe and provided with a groove extended below said seat to receive and guide the lower end of said box-rod, substantially as described.

3. In a loom, a lay, a lay rock-shaft, a casting connected to one end of said rock-shaft and presenting a guideway extended across the axis of motion of said lay rock-shaft, combined with a shuttle-box rod iitted to said guideway and carrying a shuttle-box, a spare shuttle-feeder jointed to said box-rod, a shut- IOO IIO

tle-box lever connected with said box-rod, means to move said shuttle-box lever to operate said box-rod and slide its lower end up and down in said guideway, substantially as described.

4. ln a loom, a lay, a running shuttle-box, its rod, and means to move it on the lay, a spare shuttle-feeder carried by a lever jointed to said shuttle-box rod, and a spring acting on said lever to normally turn it toward the breast-beam, combined with the lay rockshaft, the rocker-iron connected thereto having a seat for the picker-shoe and provided with a groove extended below said seat to receive and guide the lower end of said boxrod, substantially as described.

5. The lay provided with an inclined guide or nger extended toward the breast-beam, the loom-frame provided with an inclined finger extended toward the lay, a running shuttle-box, its rod; a spare shuttle-feeder presenting a lever having a notch or opening which is normally engaged by the inclined 'guide or finger connected with the loom side, means to move said running shuttle-box and with it said shuttle-feeder vertically in unison, and during such movement force the lever carrying the shuttle-feeder from one onto the other of said fingers, the iinger extended from the lay serving temporarily as a locking device to retain the shuttle-feeder in its operative position at the lay, substantially as described.

6. A lay having a vertical slot in its racewayfor the reception of a picker-stick, a vertical picker-stick movable in said slot, a running shuttle-box having a slot in its under side for the reception of said picker-stick, means to lift said shuttle-box, and a second shuttle-box adapted to be lifted in unison with said running shuttle-box, said second shuttle-box having a slot in its under side in which said picker-stick may operate to throw a shuttle therefrom, substantially as described.

7. The running shuttle-box composed of a slotted bottom plate, a front side wall having a top lip or iiange, rods attached to said plate, a lay having a plate to aline the rear side of the shuttle in the said running shuttle-box, combined with a shuttle-box rod, and means to move it vertically from its operative into its inoperative position, the shuttle in said running box being permitted to escape from the open rear side of said running shuttle-box when the latter is in its inoperative position, substantially as described.

8. The lay having the inclined guiding and locking finger; an inclined finger extended from the loom side and lying in a vertical plane substantially parallel with the guidingfinger of the lay, combined with a lever carrying the spare shuttle-feeder, said lever having a notch or opening for the reception of both of said inclined fingers, and means to lift said lever and force it laterally from one onto the other of said fingers, substantially as described.

9. The lay having the inclined guiding and locking finger; an inclined guide or iinger eX- tended from the loom side and lying in a vertical plane substantially parallel with the guiding-iinger of the lay, combined with a lever carrying the spare shuttle-feeder, said lever having a notch or opening for the reception of both of said inclined iingers, aroller located in said opening to ride on said inclines, and means to lift said lever and force it laterally from one onto the other of said fingers, substantially as described.

l0. The lay, the casting 614 bolted thereto and presenting at its front side a bar located below the rear side of said casting and presenting behind said bar a slot for the working picker-stick; a wall rising from the said casting at its higher level and standing substantially parallel with the dents of the reed of the lay; a running shuttle-box composed of a bottom plate slotted for the passage of the picker-stick and having a wall rising from it at the front side of the lay, said wall having a lip at its upper, edge to partially overlap the running shuttle in said running shuttleboX; a box-rod for said running shuttlebox; aspare shuttle-feeder normally held stationary in its inoperative position and composed of a slotted bottom plate and a spring or side wall and a lever carrying said plate and jointed to said box-rod; combined with means to raise and lower in unison said running shuttle box and said spare shuttlefeeder, putting said running shuttle-box in its inoperative position with its open rear side above the wall carried by the lay, so that its shuttle may be discharged over said-Wall 5 the shuttle-feeder when coming into its operative position being carried over the top of said bar in position vertically with relation to said running shuttle-box, whereby the spare shuttle in said box may be acted upon by the picker moving in the slot in the said bottom plate and behind said bar to throw the spare shuttle from the spare shuttle-feeder, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

RANDOLPH CROMPTON. HORACE WYMAN.

IOO

IIO 

